First of all, i've been having an issue with iTunes not completing the sync process. "..waiting for changes to be applied"

I kind of "fix" it by removing all my music from my iPhone (Settings>General>Usage>Manage Storage>Music - Delete), sync my iPhone with the USB cable and sync it again (this time, putting all my music back)
It worked.

I had the same problem again and did the same thing and it worked again.

Not sure whether it's related or not but now my iPhone won't appear in iTunes over wifi. I tried to initiate a sync by going to (Settings>General> iTunes Wi-Fi Sync) but in vain.

I was wandering whether some of you guys had come across the same issue and fixed it.

My iPad was doing this for a while. I am pretty sure I fixed it by (on the iPad) signing out of iCloud and signing back in. Once it signed in, it updated some certificate that signed the communications and it shows up all the time when it's on my home wifi now.

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